#N Pentadecathlon on 37P7.1
#C A small non-trivial period 105 oscillator
#C www.conwaylife.com/wiki/index.php?title=Pentadecathlon_on_37
#C P7.1
x = 17, y = 16, rule = b3/s23
bo15b$bo15b$obo14b$bo15b$bo6b2o5bob$bo5bo5b3ob$bo8bobo4b$obo10bo3b$bo
6bo2b3o2bo$bo6bo5b3o$8bo3b2o3b$7b2o5bo2b$7bo2bob2o3b$8bobobo4b$9b2o2bo
3b$12b2o!